Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date
February 21, 2026
Submitted
April 6, 2026
Operation
Air carrier
Aircraft
N422UP
Make and model
Boeing 75724APF
Aircraft serial
25324
Aircraft time
36,626 hours, 23,888 cycles
Part
Floorbeam
Part number
146N51721
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

MAJOR REPAIR. UPON REMOVAL OF DAMAGED ON DECK PLATE, FOUND FLOORBEAM UPER FLANGE EXFOLIATED BS 1681, LBL 28 - 33. REMOVED THE DAMAGE. CUT OUT THE FLOORBEAM UPPER TEE AND CUT AWAY ANY DAMAGE ON FLOORBEAM VERTICAL WEB AS REQUIRED IAW E.A. 757-5310-01-B0703, REV P1, STEP 3. ACCOMPLISHED ON FAULT LINE 1013 T3F18E008BNJD CORRECTIVE ACTION 10.

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